{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:4D26J4IIOKVC35GY3A5ZYTRGBT","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"efcd12d38f8135eeed3671fb920a45555c619f37f766ca3573c7ad71a23c865a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-06-22T20:42:26Z","title_canon_sha256":"cbc7f73c4fbc40b3339fef31a36d100b4802dd3fe9a9aeed9148043037edc580"},"schema_version":"1.0","source":{"id":"2506.18166","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.18166","created_at":"2026-07-05T11:35:35Z"},{"alias_kind":"arxiv_version","alias_value":"2506.18166v1","created_at":"2026-07-05T11:35:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.18166","created_at":"2026-07-05T11:35:35Z"},{"alias_kind":"pith_short_12","alias_value":"4D26J4IIOKVC","created_at":"2026-07-05T11:35:35Z"},{"alias_kind":"pith_short_16","alias_value":"4D26J4IIOKVC35GY","created_at":"2026-07-05T11:35:35Z"},{"alias_kind":"pith_short_8","alias_value":"4D26J4II","created_at":"2026-07-05T11:35:35Z"}],"graph_snapshots":[{"event_id":"sha256:af1d57fe3f0881a93d7499ef436e901af8d96326319f1403083db28c4cec3032","target":"graph","created_at":"2026-07-05T11:35:35Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2506.18166/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The role of twist angle ($\\theta_t$) in tailoring the physical properties of heterostructures is emerging as a new paradigm in two-dimensional materials. The influence of flat electronic bands near the magic angle ($\\sim$1.1$^{\\circ}$) on the phononic properties of twisted bilayer graphene (t-BLG) is not well understood. In this work, we systematically investigate the G and 2D Raman modes of t-BLG samples with twist angles ranging from $\\sim$0.3$^{\\circ}$ to $\\sim$3$^{\\circ}$ using micro-Raman spectroscopy. A key finding of our work is the splitting of the G mode near the magic angle due to mo","authors_text":"A. K. Sood, Anindya Das, Darshit Solanki, Kenji Watanabe, Takashi Taniguchi","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-06-22T20:42:26Z","title":"Anomalies in G and 2D Raman Modes of Twisted Bilayer Graphene Near the Magic Angle"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.18166","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:c04ad15672781435e76f268b44ecb7f7ab7fc282cd3bab671526cd8a80b7fa8f","target":"record","created_at":"2026-07-05T11:35:35Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"efcd12d38f8135eeed3671fb920a45555c619f37f766ca3573c7ad71a23c865a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2025-06-22T20:42:26Z","title_canon_sha256":"cbc7f73c4fbc40b3339fef31a36d100b4802dd3fe9a9aeed9148043037edc580"},"schema_version":"1.0","source":{"id":"2506.18166","kind":"arxiv","version":1}},"canonical_sha256":"e0f5e4f10872aa2df4d8d83b9c4e260ce2fc749a9baec73c82d9837d8c3e2fd1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e0f5e4f10872aa2df4d8d83b9c4e260ce2fc749a9baec73c82d9837d8c3e2fd1","first_computed_at":"2026-07-05T11:35:35.686215Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:35:35.686215Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tzK8V9Ib1WMXgpVOFDLNJYPwjn+c1Z1KS60Si7S8owi+UilAuHYkdklxGoa2FRe+PwdUl9MV6w3qRMPtoWicBg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:35:35.686700Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.18166","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c04ad15672781435e76f268b44ecb7f7ab7fc282cd3bab671526cd8a80b7fa8f","sha256:af1d57fe3f0881a93d7499ef436e901af8d96326319f1403083db28c4cec3032"],"state_sha256":"82a6cb473edfe70dff606c12a4ad6acbd63e9289c255959711c541cedd4be9c9"}